Attaching means for coil springs and the like



Nov. 21, 1939. s. s. BERNSTEIN ATTACHING MEANS FOR COIL SPRINGS AND THE LIKE Filed Dec l, 1937 3mm I Jamaal 5. Bernstein mama Nov. 21, 1939 PATENT OF ICE- a'r'mcnmc amass ron con. srnnves Samuel s. Bernstein, Beverly Hills, cam. Application' December 1,. 137",'Serial No. 117,551

' 6 Claims. (0!. 85-49) This invention relates generaliv to an attaching or fastening means such u wire staples or the like. More particularly the invention relates .to ,means for attaching coil springs such as are used fi' in upholstering construction to the spring supporting fabric or webbing.

tion is particularly designed for fastening upholstering coil p in s to the sp i supporting 1 0" fabric or webbing, it is contemplated that the fastening means disclosed herein is suitable for other purposes such as the fasteningof other obiects to cloth", paper or the like, and to fastening two or more thicknesses of cloth. paper or the 1 liketo each other. For thepurpose of-this disclosure however, the.fastening means is shown anddescribed .with particular reference to the fastening of coil springs to a spring supporting fabric or webbing. 1

20 a .In the ordihary upholsteryconstruction it is' the usualpractice to fasten the coil springs to the spring supporting fabric by means of a con-- tinuoualengthpof twine which is tln-eadedaround the lower coil of. the spring at various points and 25. through the fabric. The disadvantages of construction are that it is a slowmeans of installing the springs: when the springs are installed they are often insecurely held, depending upon the slrllloftlre workman; after the up holstery has been used the springs tend to work loose, thereby causingwear of the fabric and the twine; and finally if onestitch of the twine sajproper position on the fabric.

In view of the'disadvantages of the ordinary means of attaching springs to .the supporting- 'fabric, it is a primary objectof this invention to .provide an improved attaching means for securg ing coil springs to the spring-supporting fabric.

stalled will securely and iirmly hold the spring and which will not. wear out or permit the sprin to slip-and wear the fabric, said means being in t6 the form of individual'units so that if one breaks,

the others will holdeach spring securely.

To accomplish the above mentioned object it is-a further object of this invention to provide what may be termed a metal staple. Ordinary i i I this inventionagainst which the staple must be hammered, driven or forced in order to bend it over behind the article being stapled. 7

Therefore it is a further object of this invention to provides. staple which requires no base i l or support or anvil against which it must be Although the fastening means of this invenforced to bend it to the-proper holding or closed position and which may be easily installed by p1iers-or suitable apparatus having contractible laws or by mechanism capable of bending the-1o:

.is squeezed into the closed or holding position and which, when so closed, does not leave points or :0

other sharp projections on the rear or under side of the fabric. v

These and other objects will be apparent from the drawing and the following description. Re-

ferring to -the drawing, which is for illustrative a5 1 purposes only,

Fig. 1 is a perspective view showing a coil spring secured to the upper surface of a spring supporting fabric in the manner-contemplated by Fig. 2 "is an inverted perspective viewof the' preferred form-of staple or fastener of this inven- I tion. I

Fig. 3 is an end elevation of a staple in holding.

' or closed position shown with relation to a frag-. 3'5- ment of a coil spring and a section of spring supporting-material.

' Fig. 4 is an inverted perspective view of a modi-' fled form of staple.

Fig. 5 is an end elevation of the stapleshown o in Fig. '4 in the closed orolding' position, showing it in relation to a lowe coil of aspring and supporting fabric. p

Fig.6 is a perspective view of another form of staple. I 5 Fig. 7 is an end elevation of. the staple of Fig. 8 and a fragmentary view of a modified form'of jaw mechanism for use in connection with the staple shown in Fig. 6.

Referring to Fig. 1 there is shown a spring sup 60 porting fabric 50 upon which is-supported'acoil spring SI of the. type commonly used in upholstery construction. The lower coil I2 of the spring is stapled to the fabric by the staples in-- dlcated by reference numeral It. This 'illus. u

trates the manner in which the coil spring is stapled to the supporting fabric by means of the staple or fastening means of this invention. For the purpose of illustration the fabric 50 has been shown but it is contemplated that the staplingmeans may be used--in connection with interlaced webbing or other types of spring supports.

In Figs. 2 and 3 there is shown a preferred form of staple or fastener. In Fig. 2 the staple is shown inverted for clarity of illustration. The

staple comprises a top portion 54 apertured at 55, the portion being slightly concavely bent at 56 to insure the staple bending properly when compressed. The staple is bent back upon itself by the folds 51, forming the under portions 58. These portions 58each terminate in a pair of curved prongs, generally indicated by reference numeral 66. These prongs are curved downwardly and slightly outwardly so that when the central portion 545 of the staple is squeezed they continue to follow the curve initially described by them and further penetrate the fabric into which the points of the prongs may be forced by slight pressure, entering the fabric on one side and reentering it again from the reverse side as the prongs rotate about an axis at the center of the staple, leaving no points or sharp edges underneath the fabric. It will be noted that when the staple is squeezed to the closed position the aperture or hole 5.5 in the top portion 56 becomes a notch fitting over the wire (lower coil of a spring) to be stapled. This is shown in Fig. l and is apparent from Fig. 3 where the staple is shown closed and securing a section of spring to a supporting fabric.

In Fig. 4 is shown in inverted position what will be termed a single type staple or fastener, as contrasted with what may be termed a double type staple of the previous figure. This staple comprises a body portion 62 which is apertured at 63 and ,slightly inwardly curved at 64. Ex-

tending downwardly from the plate portion are the prongs 65 which are outwardly curved at their ends. The staple is adapted to be squeezed closed to the position shown in Fig. 5 by thesame staple mechanism as is used in connection with the staple of Fig. 2, the aperture 63 becoming a notch for holding the coil spring section 52.

In Fig. 6 there is shown a modified form of staplewhich comprises a slightly corrugated top portion 66 having a transverse convex portion from which extend at each end pairs of inwardly curved prongs 67. This staple is adapted to be closed over the coil spring (see Fig. 7) by means of any-suitable jaw mechanism which has added thereto the centrally depending abutment member 68 which acts as a stop means on the top of the staple to prevent it from expanding upwardly when the jaws are contracted. 'The abutment member is mounted on thepivot pin of the jaw mechanism by means of an aperture 68'. For guiding the member 88 centrally of the jaws, extended portions 69 are provided which slide in slots 69' of the jaw mechanism.

I claim as my invention:

1. A staple comprising a centrally apertured metal strip terminating in pronged end portions, said metal strip being bent back upon itself adjacent each end to form a substantially flat apertured top portion and two under portions, the pronged end portions being curved downwardly and outwardly.

2. A staple comprising a centrally apertured metal strip terminating in pronged end portions,

said metal strip being bent back upon itself ad- Jacent each end'to form an apertured top portion and two under portions, the pronged end portions being curved downwardly and outwardly, said top portion being slightly concavely bent transversely thereof.

3. A metalstaple comprising a centrally apertured top portion having a slight concave. transverse bend, and downwardly and outwardly extending prong portions, said prong portions being spaced from said transverse bend, said staple being adapted to be squeezed to form a fold in said top portion to cause said aperture to form a notch and to cause said prong portlonsto move outwardly and upwardly.

4. A metal staple comprising a top. portion having a slight concave transverse bend, and having downwardly and outwardly extending prong portions', said prong portions being spaced on opposite sides of said bend, said staple being adapted to be squeezed on opposite sides ofsaid bend whereby said bend is increased to a fold and said prong portions are moved outwardly and then upwardly.

5. A staple comprising a centrally apertured metal strip having a bodyportion and a pair of prong portions on opposite sides of said body portion, each pair of said prong portions extending below said body portion at substantially right angles thereto, the ends of the prong portions of each of said pairs being divergently disposed with relation to each other, said strip having a slight concave bend extending across the middle of said body portion, said bend being between the individual prong portions of each of said pairs of 

